English
Stud Gun EP-8, EP-9, EP-10
OKU Tools GmbH, 71229 Leonberg, Germany
9
EN
6 Faults and troubleshooting
When unscrewing the intermediate piece (17), it must be held tight,
because of the strong compression spring which is in the gun. If
not, it can be ejected and pose great danger.
No.
Cause
Trouble shooting
6.1
Deformed or dirty stud jammed in
feeding pipe (13) or gun head.
Unscrew Union nut (18) and take the head (26)
off the gun. Now remove the jammed stud.
6.2
Stud in feeding pipe (13) in wrong
position (with shank leading)
Remove feeding tube and shake out stud
6.3
Trigger (28) get caught
Remove O-Ring (30) and dowel pin (29) and
then trigger (28). Clean and lubricate trigger
slightly with oil.
Check if compression spring (3) broken, if so
replace compression spring.
6.4
Worn spreader fingers (23)
Unscrew Union nut (18) and take the head (26)
off the gun. Remove spring lock (21) and re-
place spreader finger (23)
6.5
Worn push rod (12)
Unscrew Union nut (18) and take the head (26)
off the gun. Unscrew both hexagon head cap
screws (27)
(Caution!)
, hold the intermediate
piece (17) (pressure of inner springs). Remove
intermediate part and circlip (15). Extract push
rod (12) together with the springs (10, 11), re-
taining ring (14) piston disk (6) and lip seal (7).
Unscrew hexagon nut (4) and replace worn
push rod. Assemble the gun is reversed order
and replace hexagon nut if necessary.
6.6
Worn centering finger (24)
Unscrew Union nut (18) and take the head (26)
off the gun. Remove spring lock (21), Union nut
and O-ring (19). Replace centering finger (24).
6.7
Worn separating finger (20)
Unscrew Union nut (18) and take the head (26)
off the gun. Remove spring lock (21), Union nut
and O-ring (19). Drive off spring pin (22) with a
drift punch until it is possible to remove the
separating finger (20). Replace separating fin-
ger, consider that the separating finger may not
jam it should remain movable.